diff --git a/packages/behavior/item/collection.js b/packages/behavior/item/collection.js
index 401ce41..4b491cf 100644
--- a/packages/behavior/item/collection.js
+++ b/packages/behavior/item/collection.js
@@ -23,6 +23,13 @@ export function Collection(type) {
       }
     }
 
+    createClone() {
+      const Items = this.constructor;
+      const items = new Items();
+      items.clone(this);
+      return items;
+    }
+
     count() {
       return this[plural].length;
     }